Psalms 18:25

Those that forsake the ways of the Lord, depart from their God. But though conscious to ourselves of many a false step, let there not be a wicked departure from our God. David kept his eye upon the rule of God's commands. Constant care to keep from that sin, whatever it be, which most easily besets us, proves that we are upright before God. Those who show mercy to others, even they need mercy. Those who are faithful to God, shall find him all that to them which he has promised to be. The words of the Lord are pure words, very sure to be depended on, and very sweet to be delighted in. Those who resist God, and walk contrary to him, shall find that he will walk contrary to them, Le 26:21-24. The gracious recompence of which David spoke, may generally be expected by those who act from right motives. Hence he speaks comfort to the humble, and terror to the proud; "Thou wilt bring down high looks." And he speaks encouragement to himself; "Thou wilt light my candle:" thou wilt revive and comfort my sorrowful spirit; thou wilt guide my way, that I may avoid the snares laid for me. Thou wilt light my candle to work by, and give me an opportunity of serving thee. Let those that walk in darkness, and labour under discouragements, take courage; God himself will be a Light to them.

The dealings of the Lord in his own case, cause the grateful singer to remember the usual rule of God's moral government; he is just in his dealings with the sons of men, and metes out to each man according to his measure. "With the merciful thou wilt shew thyself merciful; with an upright man thou wilt shew thyself upright." Every man shall have his meat weighed in his own scales, his corn meted in his own bushel, and his land measured with his own rod. No rule can be more fair, to ungodly men more terrible, or to the generous man more honourable. How would men throw away their light weights, and break their short yards, if they could but believe that they themselves are sure to be in the end the losers by their knavish tricks! Note that even the merciful need mercy; no amount of generosity to the poor, or forgiveness to enemies, can set us beyond the need of mercy. Lord, have mercy upon me, a sinner.